Gasolene-engine.



F. C. ZUMDAHL. GAsoLENB ENGINE. APPLIOATIONI'ILED JAN. 3, 1911.

Patented July` 16, 1912.

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Tl uw uml, I il u I UNITED sTATEs PATENT oEEioE.

FREDERICK C. ZUMDAHL, OFROCKFOBD, ILLINOIS, ASSIGNOR TO lROCKFORD ENGINE VORKS, F ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

GAsoLENE-ENGINE.

Specification of Letters Patent.

Patented July 16, 1912.

Application filed January 3, 1911. SerialNo. 600,585.

ing at Rockford, in the county of Winnes away of the lower portion of thefmixer, and

bagoand State `of Illinois, have invented certain new and useful Improvements in Gasolene-Engines, of which the following is a specification. j

The object of this invention is to provide means for insuring .a charge of gasofl lene being taken in by the suction of the'prston, in starting a gasolene engine. y

In the accompanying drawings, Figure 1 is an elevation, partlyl in section showing my improvements. Fig. 2 is a vertical section through the lower portion of the mixer. Fig. 3- is a sect-ion on dotted line an Fig.' 2. Fig. a is a section on dotted line a a Fig. 2 in which the' cup is lowered. 'Fig. 5.is a perspective view, inl which parts are broken in which the cup is lowered; v

The gasolene engine to which I have applied my improvements is of an old .construct-ion and in the drawings I have only shown somuch thereof as is necessary to show the connection of my improvementsv thereto. This engine comprises the cylinder l, intake valve 2, exhaustvalve 3, Ybase 1 and gasolene reservoir 5 located in the base of the engine.l The intake pipe 6 communicates/with the intake valve in the usual manner and further illustration 'or'description are deemed'unnecessary.

To the intake pipe 6 ,is connected a mix".

ing chamber comprising the pipe 7 by the screws 8, and the lower end of this mixing chamber is enlarged as at 9. A partition 10 is located at the junction of the enlarged lower end and the. main portion of the mixing chamber and is provided with an open? ing 11. .A support 12is connected to the walls of the enlarged lower end of the mixing chamber by the arms 13 and to the support 12,is connected a screw-threaded rod 14. From the inner face of the enlarged lower end of the mixing chamber extends a projection 15.'

A cup 16 has a center opening which receives the rod 1.11.. This cup is held in connection with the lower end o f the mixing chamber by the spring 17 surrounding the rod 14 and a nut 18 holding the spring in place. lThe upper faccof the cup 16 is formed with three cam-shaped projections 19 and each formed with a recess 20 Fig. 5, at its highest point. A projection 21 extends fromone of the cam-shaped projections 19. From the outside of thev cup 1G extends a handle 22. v

' Afneedle valve 23 has a connection with 'the pipe 7 and enters the seat 24. A pipe 25 has one end connected with the pipe 7 and its other end communicates with the lgasolene reservoir 4. Afcheck valve 26 4is -located in 'this pipe connection.

In starting the engine, the cup is turned so that the lcam-shaped*projections are free ofrt-he arms 13 which will allow the cup to l .rest against the lower end of the enlarged portion of the mixing chamber as shown in solid lines Fig. 2. The needle is then opened which will allow gasolene to he drawn from -the -.gasolene reservoir; The engine is then turned over which will draw 'a charge 'of gasolene into the cylinder' and when ignited, the engine will run. As soon as the engine receives this vpreliminary charge of gasolene, the cup is turned so that the cam-shaped projections will contact with the arms 13 which will force the cup down and awayfrom the lower end of the venlarged 'portion of the combustion chamber, until the recesses 20 receive the arms, and the projection 21 contacts with the projection 15. compress the spring 17. When the cup is This movement of the cup will lowered the air to supply the engine will v enter the combustion chamber around the slower open end of-the enlarged portion 9,

and the suction-of air through the combustion chamber will dra-w on the gasolene around the needle valve 23 after which' the engine will continue to run. .If necessary, gasolene.v may be poured into-the cup and ignited, which will heat the combustion chamber which is oft-en n-cessary in cold weather. The check valve 26 willhold the level of the gasolene to that point. I claim asmy inventionY 1. In a gasolene engine,` the combination of an air intake having an opening, a plate adapted to close the opening, a springholding the plate over the opening, and cam projections for forcing the plateaway from -the opening` against the action of the springf. `2. In a gasolene engine, the 'combination of an air intake having an opening, a plate adapted to close the opening, a spring holding the plate over the opening, cam projections for forcing the plate away Vfrom the and a Cup located below the lower end of opening against the action of the spring;7 the intake and supported on a vertically ar- 15` and a stoprfor limiting the movement of the rangedpivot and provided with a cam face plate. V whereby an oscillatory movement will move 5 3. In 'a gasolene engine, the combination it toward and from the air intake. of an air intake havingan open lower end, In testimony whereof I have hereunto set and a plate located below the lower end of my hand in presence ofhtwo subscribing wit- 20 the intake and supported on a vertically nesses.

arranged pivot and provided with a 4cam FREDERICK C. ZUMDAHL. 10 face whereby an oscillatory movement will move it toward and from the -air intake. -Witnesses:

4. In a gasolene engine, the combination A. O. BEHEL, of an air intake having an 'open lower end, I E. D. E. N. BEHEL.

Copies of this patent may be obtained for, five cents each, by addressing the Commissioner of Patents,

` Washington, D. C. 

